Stand-alone tool to model breaching process


EMBREA is a full featured breach model developed at HR Wallingford. It is the successor of the HR BREACH model. EMBREA includes all the features of the HR BREACH model in addition to modelling multiple zones of material with differing erodibilities, allowing more complex and modern dam constructions to be analysed without the need for simplifications.

The EMBREA model currently simulates:

The model can run in single simulation mode (i.e. run produces only one output) or Monte Carlo simulation mode (i.e. a run produces a probability distribution of the output parameters). The model has been developed to operate within a standard 'Windows' environment and allows for easy handling of modelling data and visualisation of results to provide a flexible modelling tool for determining potential flood risks.

EMBREA is available online in two versions Lite and Pro. The key features of each version are given in the below table. To purchase a subscription to EMBREA Pro, just follow the link below.


EMBREA model version 




Homogenous embankments

Homogenous, composite and layered embankments

Failure mode

Overtopping and piping available in both versions

Probabilistic representation of variability in embankment material properties and construction quality

Not included


Simulation mode


Single and Monte Carlo

Output type





£500.00 a year.


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If you are just getting started, read our free guide on breach predictions

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